Method for production of tomographic slice images of an...

Details Method for production of tomographic slice images of an... Method for production of tomographic slice images of an...

2008-07-22

2008-07-22

Thomas, Courtney (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S004000

Reexamination Certificate

active

07403588

ABSTRACT:
A method is disclosed for production of tomographic slice images of an examination object using a computed tomography scanner. In order to scan an examination object, at least two X-ray beams are produced, which each are at offset angles and fan out from a focus to an opposite detector and scan the examination object. The scans at least partially overlap. Detector output data which is emitted from the detector elements is measured together with physical orientation data of the beams and is converted to projection data sets. Slice images are then calculated. In order to calculate the complete slice images, data which is redundant from the measured data of the at least two X-ray beams from overlapping projection intervals is used for each complete slice image. The size of the overlap area of the projection data used from the individual X-ray beams is defined before the calculation of the slice images, in order to vary time resolution and image quality.

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